Abstract
A different class of high frequency ultrasonic transducers is theoretically considered and experimentally demonstrated. This transducer generates plane longitudinal waves using a two-dimensional structure of inversely poled ferroelectric domains. The crystalline ferroelectric wafer from which the transducer is fabricated is bounded along the plate thickness, and the ferroelectric multidomain system has its dimension along the plate length. Possible applications include medical imaging, nondestructive testing, and improved acoustic microscopy for use both in biological and physical sciences. Experimental measurements and theoretical calculations are in good agreement.
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